Can I take Codeine and Paracetamol together?
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Publicado originalmente 25 Jan 2026
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Codeine and paracetamol are frequently used together to provide better pain relief than either medicine used alone. They do not have a negative interaction; instead, they work together in a helpful way. In fact, they are often sold combined in a single tablet (such as Co-codamol).
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It is generally considered safe to take codeína e paracetamol together as these medicines work in different ways to stop pain.
Paracetamol works mainly in the central nervous system to reduce pain signals and lower fevers, while codeine is an opioid that changes how your brain and nervous system respond to pain.
Because they use different pathways, their effects are 'additive', meaning they provide a stronger combined effect.
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How to take codeine and paracetamol together safely
Do not exceed the maximum dose for either medicine.
Check other cold or pain medicines to make sure they don’t already have paracetamol or codeine, as too much paracetamol can seriously damage your liver.
Precauções importantes
Voltar ao conteúdoDoença hepática ou consumo excessivo de álcool
Taking paracetamol if you have liver problems or drink more than 14 units of alcohol per week significantly increases the risk of life-threatening liver damage, even at standard doses.
Asthma or breathing problems
Codeine can dangerously slow your breathing. You must not take it if you have severe asthma or chronic obstructive pulmonary disease (COPD), as it can lead to respiratory failure.
Opioid addiction or long-term use
Codeine is highly addictive. Using it for more than 3 days can lead to physical dependence and withdrawal symptoms; it should only be used for short-term pain relief.
Amamentação
Não tome codeína enquanto estiver amamentando. Ela passa para o leite materno e pode causar problemas respiratórios potencialmente fatais ou sonolência extrema no seu bebê.
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Avisos sobre alimentos e bebidas
Voltar ao conteúdoÁlcool
It is best to avoid or strictly limit alcohol when taking paracetamol and codeine. Combining alcohol with paracetamol increases the risk of serious liver damage. Combining alcohol with codeine can increase the sedative effects of the medicine, making you feel excessively sleepy, dizzy, or confused, and can lead to dangerous breathing difficulties.
Suco de toranja
Grapefruit juice can interfere with how your body processes codeine. This may reduce the effectiveness of the pain relief or, in some people, increase the risk of side effects. It is best to avoid drinking large amounts of grapefruit juice while taking this medicine.
Cafeína (café, chá, bebidas energéticas)
Be cautious with caffeine if you are taking 'co-codamol' (a combination of codeine and paracetamol) that already contains caffeine. Too much caffeine can cause tremors, a racing heart, and difficulty sleeping. If your medicine does not already contain caffeine, normal intake is usually fine.
Usando outros medicamentos
Voltar ao conteúdoTaking multiple medicines? Our Verificador de Interações de Medicamentos helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Aviso Legal
Esta informação é apenas para fins educacionais gerais e não deve ser considerada como um substituto para aconselhamento médico profissional. Sempre consulte seu médico, farmacêutico ou outro profissional de saúde qualificado antes de tomar decisões sobre seus medicamentos. As circunstâncias individuais podem variar, e somente um profissional de saúde que conheça seu histórico médico pode fornecer orientações personalizadas.
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Histórico do artigo
As informações nesta página são escritas e revisadas por clínicos qualificados.
25 Jan 2026 | Publicado originalmente

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